Home / 280,360.26-386,851.55-165,622.95

Finding the Fourth Proportional to 280,360.26, 386,851.55 and 165,622.95

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Solution

The fourth proportional to 280,360.26, 386,851.55 and 165,622.95 is: 228,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,360.26 : 386,851.55 = 165,622.95 : x
  2. Step 2: Convert to fraction form
    280,360.26/386,851.55 = 165,622.95/x
  3. Step 3: Cross multiply
    280,360.26x = 386,851.55 × 165,622.95
  4. Step 4: Simplify right side
    280,360.26x = 64,071,494,094.96
  5. Step 5: Solve for x
    x = 64,071,494,094.96/280,360.26
  6. Step 6: Final answer
    x = 228,532.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.